I will check out the guide and try to read it carefully to hopefully fully understand what it is saying. Do I need to always keep the driver pack that I downloaded from Nvidia if I want to uninstall my drivers? What happens if I don't keep it and a new driver comes out am I allowed to use that one to uninstall the old drivers?

You had said in an earlier post about using Ubuntu packages for my Nvidia drivers. Do I get those though the package installer just like I get other software, and if so do I need to add a repository to be able to find those drivers?